Looks a ton better than what you started with.
Loving it so far.
How bout installing a 230mm fan on the side panel and ~3 Scythe Kama Bays as intakes?
Good work by the way
Honestly, when I saw the first pic of the case you were going to start with... eeeeew
But you aren't even done and it looks seriously sweet!
Anyone can go out and buy a mountain mods case if they want, but not everyone has the drive to do something like this. The coolest things are always one offs that you make yourself.
Have you thought about sealing the 2 holes on the top?
I personally think that it looks great... excellent job!!